[ADVSTORESHELL](https://attack.mitre.org/software/S0045) is a spying backdoor that has been used by [APT28](https://attack.mitre.org/groups/G0007) from at least 2012 to 2016. It is generally used for long-term espionage and is deployed on targets deemed interesting after a reconnaissance phase. (Citation: Kaspersky Sofacy) (Citation: ESET Sednit Part 2)
Platforms: Windows
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